Provide built-in image registry

[samos123]

Configure the data storage to be S3 compatible backend since an object storage is required for substratus anyway

[nstogner]

This comes with complications around establishing TLS trust at the node level for pulling images (as you know). A lot of companies will have admission controller policies against installing a DaemonSet with the host-level access required here. We might want to table this for a while until see users asking for it.